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+title = "Carry-Propagate Adders"
+date = "2022-11-09"
+author = "Yann Herklotz"
+tags = []
+categories = []
+backlinks = ["5b1b", "5b1"]
+forwardlinks = ["5b1b"]
+zettelid = "5b1a"
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+
+These adders, like the ripple-carry and carry look-ahead adders perform
+proper additions by propagating the carry throughout the number.
+However, this comes at a cost of parallelism, because the carry has to
+be propagated sequentially. Carry look-ahead adders are interesting
+because they can predict the propagation of a carry within larger
+blocks, and then only have to do the sequential carry propagation inside
+each unit.